The monarch Shen Zhaoning, who disguises herself as a man, and her arch-rival Gu Lingyuan have been incompatible since childhood. After the Gu family was destroyed, Gu Lingyuan proclaimed himself the regent. From then on, the two competed with each other, trying to get rid of each other quickly. However, an accident caused Shen Zhaoning to have Gu Lingyuan's child. In order to hide her daughter's identity, Shen Zhaoning had to make sacrifices with her mortal enemy. The powerful regent and the monarch who hid her daughter's identity will start a love-hate game in the whirlpool of the court and the harem.
